Corner forming tool



p 2, 1952 e. F. .SCHREPPER CORNER FORMING TOOL Filed Aug. 14, 1950George E Schrepper IN VEN TOR.

Patented Sept. 2, 1952 2,608,853 CORNER FORMING 'rooL George F.'Schrepper, Algonac, Mich...

Application August 14, 1950, Serial No. 179,281

UNITED STATES PATENT owin This invention relates to new and usefulimprovements in corner forming or finishing tools and the primary objectof the present invention is to provide a device for smoothing a masticor cement over a tape that is employed for joining a pair ofintersecting or corner forming wall board sections of a buildingstructure. 7

Another important object of the present invention is toprovide a cornerforming tool including a V-shaped member of bendable material that isjoined at its leading end by a V-shaped wiper or nose together with ameans adjustably joining extensions of the side walls 'of the memberwhereby a predetermined thickness of mastic may be left adjacent thesurface of the mastic contacted by the side walls.

'A further object of the present invention is the provision of a cornerfinishing tool of the aforementioned character wherein the V-shaped noseis reinforced and strengthenedby a sleeve or ferrule that also supportsa handle whereby the tool may be manually pulled through a mastic orcement in a convenient manner. V

A still further aim of the present invention is to provide a cornerfinishing tool that is simple and practical in construction, strong andreliable in use, eificient and durable in operation, small and-compactin structure, inexpensive to manufacture, and otherwise well adapted forthe purposes for which the same is intended.

Other objects and advantages reside in the details of the constructionand operation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming part hereof, wherein likenumerals refer to like parts throughout, and in which:

Figure 1 is a bottom plan view of the present invention;

Figure 2 is a side elevational view of the present invention;

t Figure 3 is a top plan view of the present inven- Figure 4 is a, frontelevational view of the present invention;

Figure 5 is an enlarged detail sectional view taken substantially on theplane of section line 5-5 of Figure 2;

Figure 6 is a horizontal sectional view of a corner having a tapeapplied thereto with cement over the tape and looking downwardly on thetool; and,

Figure 7 is a horizontal sectional view of a corner having a tapeapplied thereto and with ggnilent over the tape and looking upwardly atthe 4 Claims. (Cl. 72136) Referring now to the drawings in detail,wherein for the purpose of illustration, there is disclosed a preferredembodiment of the present invention, the numeral I 0 represents anelongated substantially V-shaped member of bendable, preferablyresilient, material including a pair of side walls I2 and I4 that arejoined by a center bend l6. The member it] includes a leading end l8 anda trailing end 20.

The leading end of the member 10 is integrally formed with the sidewalls 22 and 24 of asub-j stantially V-shaped deflector nose or wiperele ment 26. The walls 22 and 24 are inclined relative to the side walls12 and I4, and the center bend or apex 28 of the nose 26 is'in'clin'edrelative to; the center bend it as shown best in Figures 1 and 2 of thedrawings.

A split sleeve or ferrules!) is rec'eived within the nose 26 and isfixed to' theinne'rsurfaces of the walls 22 and-24 by Welding or thelike to reinforce and strengthen the nose 261" The sleeve'i-3l'lreceives one end of a handle 32 that is held inthe sleeve by a fastener,rivet or the lilie 34.

A hand grip 36 is associated with the memberl0 andinclud'es a shank 38that is rigidly secured The side walls 12 and I4 of the member 10:define a V that is progressively reduced in cross section from theleading end of member In toward I the trailing end of the member In andare integrally formed with outer wall sections or side members 40 and 42that are inclined relative to the side walls I2 and I4, and whichinclude trailing ends that are spaced closer together than their leadingends. The members 40 and 42 reinforce and strengthen the sidewalls l2and I4, and include outwardly turned trailing flanges 44 and 46.

The rear end portions of the side members 40 and 42 support a rear pairof loops or eyes 48 that receive the eye ends 50 and 52 of a reartumbuckle 54 whereas the forward end portions of the side members 40 and42 support a rear pair of loops or eyes 56 that receive the eye ends 58and El! of a rear turn-buckle 62.

The turn-buckles 54 and 62 are manually adjusted to move the side walls44 and 46 toward or away from each other whereby the walls 44 and 46will leave slightly more or less mastic on the walls than will the wallsl2 and I4 when the tool is pulled downwardly through the mastic. Theturn-buckles also constitute a means for The nose. 26 will. deflect themastic-or cement toward the center bend l6 withthe side members 40 and42 shielding a users hand and collecting the excess portion of themastic or cement which" is readily scraped therefrom by a putty knife orthe like. The flanges 44 and d act as retainers or confiners to aid inrestricting the excess mastic or cement on the side members 48 and 42.

It is noted that the walls [2 and I4 slope toward integrally formed withthe outer edges of the side walls and inclined relative to said sidewalls, a substantially V-shaped deflector having a pair of sloping wallsjoined with the side Walls of said member and having inner joined edgesinclined relative to the joined inner edges of said side walls, and anadjustable connection between said elongated Wall sections for adjustingthe same relative to each other and to the side walls.

, 2-A corner forming tool comprising an elonated substantially v-shapedmember including a pair of sloping walls having inner joined edgesdefining a center bend, a substantially V-shaped I deflector nosejoining the sloping walls at one of each other at their rear ends toform a progressively increased depth between the walls l2, l4 and thecorner forming walls W of a structure. Thisfeature-is illustrated inFigures 6 and 7 wherein the forward ends of the walls I2, I4 contact thetapeT whereas the rear ends of the walls l2, M are spacedfrom the tape Tso that as the tool is drawn through the mastic or cement, previouslyapplied to the tape, a deposit of mastic or cement, approximately inchthick, will remain on the tape to allow for a slight shrinkage when themastic or cement dries. This particular construction-is quite essentialand permits the tool to functionin a highly eflicient and practicalmanner.

- In view-oi the'foregoing description taken in conjunctionwith theaccompanying drawings it is believed that a clear understanding of thedevice will be quite apparent to those skilled in this art" A moredetaileddescr-iption is accordingly deemed unnecessary.

It is to be understood, however, that even though there is hereinshownand described a preferred embodiment of the invention the same issusceptible to certainchanges fully comprehended by the spirit of theinvention as herein described and-the scope of the-appended claims.

Having described the invention, what is claimed as new is: v I

l. A cornerforming tool comprising an elongated substantially V-shapedmember including a pair of sloping side walls having inner edges joinedtogether, a pair of elongated wall sections their ends and having itsapex inclined to the center bend, a reinforcing and strengthening memberfixed in the apex of the deflector nose, a handle supported by saidreinforcing and strengthening member, and means joining said pair ofsloping walls and strengthening the corner tool.

3. A corner forming tool comprising an elongated substantially V-shapedmember including a pair of sloping walls having inner joined endsdefining a center bend, a substantially V-shaped deflector nose joiningthe sloping walls at one of their ends and having its apex inclined tothe center bend, means fixed in the apex of said deflector nosereinforcing and strengthening the deflector nose, a handle supported bysaid means, a pair of side members integrally formed with said slopingwalls,- and connectors between said side members reinforcing andstrengthening said corner tool.

-i-.-The combination of claim 3 wherein said connectors include forwardand rear parallel turn-buckles terminally attached to said side members.

' GEORGE F. SCI-IREPPE R...

REFERENCES CITED The following references. are of record in the file ofthis patent:

UNITED STATES PA'I'ENTS

